Citation: Zong-Yi HUANG, Yi-Fan ZHENG, E YANG, Xu-Chun SONG. Preparation and photocatalytic performance of BiOIO3/BiOCl heterojunction with dominated facet[J]. Chinese Journal of Inorganic Chemistry, ;2023, 39(2): 263-271. doi: 10.11862/CJIC.2022.279 shu

Preparation and photocatalytic performance of BiOIO3/BiOCl heterojunction with dominated facet

  • Corresponding author: Xu-Chun SONG, songxuchunfj@163.com
  • Received Date: 17 July 2022
    Revised Date: 24 October 2022

Figures(9)

  • The BiOIO3/BiOCl heterojunctions with different dominated facet, BiOIO3/{110}BiOCl and BiOIO3/{001} BiOCl, were prepared through facile solvothermal/hydrothermal methods with ethylene glycol/deionized water as solvents. As - prepared BiOIO3/BiOCl photocatalysts were characterized by X - ray diffraction, scanning electron microscope, energy-dispersive spectroscopy, and UV-Vis diffuse reflectance spectra. The photocatalytic activity of BiOIO3/BiOCl heterojunctions was evaluated by photo - catalytically decomposing rhodamine B and phenol in an aqueous solution under visible light irradiation. The results showed that 25% BiOIO3/{110}BiOCl heterojunctions exhibited the highest photocatalytic efficiency. The degradation of RhB over 25% BiOIO3/{110}BiOCl was 98.7% after 15 min of light irradiation. And 100% phenol can be degraded after irradiation for 150 min. The better photocatalytic performance of BiOIO3/{110}BiOCl may be attributed to the strong absorption of the visible light, the het- erojunction structure, and the efficient separation of photo-generated carriers benefiting from the dominated (110) facet of BiOCl. The superoxide radicals (·O2-) and holes (h+) are the main active species in the photocatalytic process. Moreover, a reasonable mechanism for enhanced photocatalytic performance was also discussed based on theexperimental results.
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